844341121 has 4 divisors (see below), whose sum is σ = 909290452. Its totient is φ = 779391792.

The previous prime is 844341107. The next prime is 844341143. The reversal of 844341121 is 121143448.

844341121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 184416400 + 659924721 = 13580^2 + 25689^2 .

It is a cyclic number.

It is not a de Polignac number, because 844341121 - 2⁷ = 844340993 is a prime.

It is a super-2 number, since 2×844341121² = 1425823857223073282, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 844341121.

It is not an unprimeable number, because it can be changed into a prime (844341101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32474646 + ... + 32474671.

It is an arithmetic number, because the mean of its divisors is an integer number (227322613).

Almost surely, 2^844341121 is an apocalyptic number.

It is an amenable number.

844341121 is a deficient number, since it is larger than the sum of its proper divisors (64949331).

844341121 is a wasteful number, since it uses less digits than its factorization.

844341121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64949330.

The product of its digits is 3072, while the sum is 28.

The square root of 844341121 is about 29057.5484340988. The cubic root of 844341121 is about 945.1614072534.

Adding to 844341121 its reverse (121143448), we get a palindrome (965484569).

The spelling of 844341121 in words is "eight hundred forty-four million, three hundred forty-one thousand, one hundred twenty-one".